Mattress



FIG. 1 is a perspective view of a mattress, showing my new design;

FIG. 2 is a top down view of the mattress shown in FIG. 1;

FIG. 3 is a left side elevational view of the mattress shown in FIG. 1;

FIG. 4 is a front elevational view of the mattress shown in FIG. 1; and,

FIG. 5 is a bottom down view of the mattress shown in FIG. 1

The rear elevational view of the illustrated mattress and foundation is not shown because it is a mirror image of the front elevational view shown in FIG. 4.

The right side elevational view of the illustrated mattress and foundation is not shown because it is mirror image of the left side elevational view shown in FIG. 3.

The mattress is shown with a symbolic break in its length and width. The appearance of any portion of the article between the break lines forms no part of the claimed design.

The broken lines depict a mattress foundation and form no part of the claimed design. The broken line(s) which define the bounds of the claimed design form no part thereof. 

CLAIM I claim, the ornamental design for a mattress, as shown and described. 